package com.tzg157.fitness.entity;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class UserItemRating {
    private int uid;
    private int cid;
    private int rating;
    private long timestamp;

    public static void main(String[] args) {
        //帮我实现一个协同滤波算法
    }
}
